The thousand drums

You look for the safest path, prodding here and there with your paw. As you take your time, water drips from the top of the cave, landing on your nose. How long have you been standing here? With a rumble, you realize too long as the cave begins to crumble around you.

As the tunnel behind you begins to collapse, you find yourself getting battered and bruised by a multitude of ice shards, their blades cutting through your fur and smashing onto the ground below. Somehow your right ear gets nicked, and will eventually scar - just another to add to your growing pile of injuries you've accumulated here. You begin to falter, but with a final push from your guide, you make it to a more stable part of the tunnel.

At the end of the collapsed tunnel, what appears to have once been an elaborate shrine at some point in time lays demolished. A part of the wall carves out and opens to an open room full of jagged ice floating in deathly waters. In the center, a large, flat expanse is frozen, and on the other side, what look like daylight shines through a small opening.

What do you do?